1 Hong Kong Centa-City Index Data

Data source: Centadata by HK Centaline Agency Limited.

Centa-City Leading Sub-index by Regions:

Home Prices for Selected Estates: In each of 4 regions, we pick 3 estates and download their historical weekly prices. URL: http://202.72.14.52/p2/cci/SearchHistory.aspx

2 Interactive Time Series Visualization

3 Dynamic Map Visualization

Load Map Visualization with Region Defintion

##       id                 long            lat            order         hole             piece           group      
##  Length:25509       Min.   :113.8   Min.   :22.15   Min.   :   1   Mode :logical   1      :15768   8.1    : 2968  
##  Class :character   1st Qu.:114.0   1st Qu.:22.27   1st Qu.: 430   FALSE:25509     2      : 4391   3.1    : 2371  
##  Mode  :character   Median :114.2   Median :22.35   Median :1121                   3      : 1237   7.1    : 1574  
##                     Mean   :114.2   Mean   :22.35   Mean   :1639                   5      :  803   12.2   : 1383  
##                     3rd Qu.:114.3   3rd Qu.:22.43   3rd Qu.:2569                   4      :  729   12.1   : 1357  
##                     Max.   :114.4   Max.   :22.56   Max.   :5719                   6      :  421   11.1   : 1302  
##                                                                                    (Other): 2160   (Other):14554  
##       Code      Region          rowid      
##  HK.IS  :5719   HK : 2490   Min.   :    1  
##  HK.SK  :5021   KL : 1249   1st Qu.: 6378  
##  HK.TP  :3344   NTE:11517   Median :12755  
##  HK.NO  :2263   NTW:10253   Mean   :12755  
##  HK.SO  :1597               3rd Qu.:19132  
##  HK.TM  :1298               Max.   :25509  
##  (Other):6267

Customize the map region colors by home prices:

4 Temporal and Spatial Variations

Using the data of home prices for 12 selected estates

##           Date Marina.Square Bel.Air Kornhill Ocean.Shores    Arch Parc.Oasis Ocean.View City.One Festival.City
## 325 2014-01-05       10901.9 19474.0  11929.4      10843.0 28775.6    14563.6    9796.88  10112.1       11164.5
## 324 2014-01-12       11217.9 19494.0  11874.6      10761.1 28536.2    14453.6    9766.75  10081.0       11309.4
## 323 2014-01-19       11619.4 19561.6  11860.5      10737.8 28551.6    14422.4    9788.78  10155.4       10656.5
## 322 2014-01-26       11780.0 19565.2  11692.9      11002.1 28467.8    14531.6    9803.13  10242.2       11534.5
## 321 2014-02-02       11727.2 19554.2  11731.0      10653.2 28693.8    14387.8    9827.07  10110.2       10825.2
## 320 2014-02-09       12229.9 19575.5  11640.5      10776.8 28679.1    14387.4    9820.91  10103.9       10742.7
##     Yoho.Town Gold.Coast  D.Park
## 325   9381.04    7241.19 8774.89
## 324   9488.51    7250.07 8785.64
## 323   9623.94    7319.71 8870.04
## 322   9712.53    7302.66 9025.65
## 321   9522.17    7305.13 9028.71
## 320   9386.51    7318.47 8835.96

Space-Time Heatmap: